West Bengal (; ) is a state in eastern India and is the nation's fourth-most populous state, with over 91 million inhabitants. Spread over , it is bordered by the countries of Bangladesh, Nepal and Bhutan, and the Indian states of Odisha, Jharkhand, Bihar, Sikkim, and Assam. The state capital is Kolkata. Together with the neighboring nation of Bangladesh, it makes up the ethno-linguistic region of Bengal.